Augment: Nullification Chamber is an item added by the Thermal Expansion mod. It is an augment that can be added to machines which produce secondary outputs, such as the Pulverizer. The augment will destroy any excess secondary output items. This means that it will destroy any secondary output items once the secondary output slot has filled up the the maximum stack amount, usually 64. when the secondary output isn't pulled out of the machine, this augment prevents the machine from stopping when the secondary output slot has filled up.